Gastec 112D Passive Dosl Tubes Ethanol C2H5OH (100 ~ 25000 ppm)
Manufacturer: Gastec Model: 112D - Request a Quotation
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Indicator: 1000 ~ 25000 ppm
Measuring Range: 100 ~ 25000 ppm
Sampling Hours: 1 to 10 hours
Colour Change: Yellow → Brown
Reaction Principle: C2H5OH + Cr6++ H2SO4 → Cr3+
Coefficient of Variation: 15% (for 1000 to 3000 ppm-hr), 10% (for 3000 to 25000 ppm-hr)
Nr. of tests: 10
Measuring Range | 100 to 25000 ppm |
Sampling Hours | 1 to 10 hours |
Detecting Limit | 0.05 ppm (10 hours) |
Colour Change | Yellow → Brown |
Reaction Principle | C2H5OH + Cr6++ H2SO4 → Cr3+ |
Coefficient of Variation | 15% (for 1000 to 3000 ppm-hr), 10% (for 3000 to 25000 ppm-hr) |
Shelf Life | 3 Years |
Corrections for temperature & humidity | Unnecessary |
Store the tubes at cool and dark place. |
Substance | Concentration | Interference | Change colour by itself to |
Esters | No | No | |
Other alcohols except IPA | No | No | |
Isopropyl alcohol | ≧ 1/1 | + | Brown |
Calibration gas generation | Diffusion tube method |
TLV-TWA | TLV-STEL | Explosive range |
- | 1000ppm (2014) | 3.3 to 19% |
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